12202721280 has 360 divisors, whose sum is σ = 43939760592. Its totient is φ = 3248750592.

The previous prime is 12202721273. The next prime is 12202721299. The reversal of 12202721280 is 8212720221.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19906254 + ... + 19906866.

Almost surely, 2^12202721280 is an apocalyptic number.

12202721280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12202721280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21969880296).

12202721280 is an abundant number, since it is smaller than the sum of its proper divisors (31737039312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12202721280 is an frugal number, since it uses more digits than its factorization.

12202721280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

It can be divided in two parts, 1220 and 2721280, that added together give a square (2722500 = 1650²).

The spelling of 12202721280 in words is "twelve billion, two hundred two million, seven hundred twenty-one thousand, two hundred eighty".